EP0554721A1 - Procédé de préparation de mousses souples, élastiques de PUR à cellules ouvertes - Google Patents

Procédé de préparation de mousses souples, élastiques de PUR à cellules ouvertes Download PDF

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Publication number
EP0554721A1
EP0554721A1 EP93100877A EP93100877A EP0554721A1 EP 0554721 A1 EP0554721 A1 EP 0554721A1 EP 93100877 A EP93100877 A EP 93100877A EP 93100877 A EP93100877 A EP 93100877A EP 0554721 A1 EP0554721 A1 EP 0554721A1
Authority
EP
European Patent Office
Prior art keywords
weight
molecular weight
bis
optionally
known per
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93100877A
Other languages
German (de)
English (en)
Other versions
EP0554721B1 (fr
Inventor
Sven Dr. Meyer-Ahrens
Gundolf Dr. Jacobs
Hans Dr. Hettel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
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Publication date
Application filed by Bayer AG filed Critical Bayer AG
Publication of EP0554721A1 publication Critical patent/EP0554721A1/fr
Application granted granted Critical
Publication of EP0554721B1 publication Critical patent/EP0554721B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4804—Two or more polyethers of different physical or chemical nature
    • C08G18/4812—Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4804—Two or more polyethers of different physical or chemical nature
    • C08G18/4816—Two or more polyethers of different physical or chemical nature mixtures of two or more polyetherpolyols having at least three hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0008—Foam properties flexible
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0041—Foam properties having specified density
    • C08G2110/005—< 50kg/m3
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0083—Foam properties prepared using water as the sole blowing agent

Definitions

  • PUR flexible foams are used in a variety of ways as upholstery materials in the furniture and vehicle sectors.
  • physical blowing agents such as Monofluorotrichloromethane (R11) use because, unlike water, they do not increase the polyurea content of the polymer.
  • the object of the present invention is therefore to adjust the compression hardness of PUR flexible foams (hot foams) in the desired manner without using the physical blowing agents used hitherto.
  • open-celled PUR block foams can be produced with reduced hardness and good elasticity if small amounts of oxyethylene group-rich polyethers (oxyethylene group content> 50%, functionality at least two) are used and at the same time in the range of 95 (index range) between 95 and 110 works.
  • oxyethylene group-rich polyethers oxyethylene group content> 50%, functionality at least two
  • the process thus enables the compression hardness to be reduced by more than 40% with an excellent value level, especially with high foam elasticity
  • Surface-active additives such as emulsifiers and foam stabilizers, also cell regulators of the type known per se, such as paraffins or fatty alcohols or dimethylpolysiloxanes, and pigments or dyes and flame retardants of the type known per se, for example trischloroethyl phosphate, triscresyl phosphate, further stabilizers against aging and weather influences, plasticizers and fungistatic Bacteriostatic substances as well as fillers such as barium sulfate, diatomaceous earth, soot or chalk.
  • emulsifiers and foam stabilizers also cell regulators of the type known per se, such as paraffins or fatty alcohols or dimethylpolysiloxanes, and pigments or dyes and flame retardants of the type known per se, for example trischloroethyl phosphate, triscresyl phosphate, further stabilizers against aging and weather influences, plasticizers and fungistatic Bacteriostatic substances as well as
  • surface-active additives and foam stabilizers to be used according to the invention, as well as cell regulators, reaction retarders, stabilizers, flame-retardant substances, plasticizers, dyes and fillers, as well as fungistatic and bacteriostatic substances and Details on the use and mode of action of these additives are described in the Plastics Manual, Volume VII, edited by Vieweg and Höchtlen, Carl-Hanser-Verlag, Kunststoff 1966, eg on pages 103 to 113.
  • the reaction components are reacted according to the one-step process, the prepolymer process or the semi-prepolymer process, which are known per se, machine equipment often being used, e.g. those described in U.S. Patent No. 2,764,565. Details on processing devices that are also suitable according to the invention are given in the plastics manual, volume VII, published by Vieweg and Höchtlen, Carl-Hanser-Verlag, Kunststoff 1966, e.g. on pages 121 to 205.
  • all components are implemented with a characteristic number (isocyanate index) of 95 to 110, preferably with a characteristic number of 9 8 to 100.
  • the key figure a term used very often in the production of polyurethane foams, says something about the degree of crosslinking of a foam. It is customary to consider that foam with the code number 100 that has the stoichiometric ratio or the theoretically required amount of isocyanate was used. With the help of the key figure it is possible to define the degree of under- or over-networking in more detail.
  • the key figure is calculated according to the general formula as follows:
  • the flexible polyurethane foams obtainable according to the invention are used, for example, as reclining and seating furniture, seats in means of transport, preferably in the car.
  • Polyol B PO / EO adduct of glycerol with an oxyethylene group content of approx. 72% by weight, predominantly prim. OH groups and an average molecular weight of about 4,700.
EP93100877A 1992-02-03 1993-01-21 Procédé de préparation de mousses souples, élastiques de PUR à cellules ouvertes Expired - Lifetime EP0554721B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4202992 1992-02-03
DE4202992A DE4202992A1 (de) 1992-02-03 1992-02-03 Verfahren zur herstellung von elastischen, offenzelligen pur-weichschaumstoffen

Publications (2)

Publication Number Publication Date
EP0554721A1 true EP0554721A1 (fr) 1993-08-11
EP0554721B1 EP0554721B1 (fr) 1997-10-29

Family

ID=6450843

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93100877A Expired - Lifetime EP0554721B1 (fr) 1992-02-03 1993-01-21 Procédé de préparation de mousses souples, élastiques de PUR à cellules ouvertes

Country Status (8)

Country Link
EP (1) EP0554721B1 (fr)
JP (1) JPH05271379A (fr)
AT (1) ATE159740T1 (fr)
CA (1) CA2088414C (fr)
DE (2) DE4202992A1 (fr)
DK (1) DK0554721T3 (fr)
ES (1) ES2108142T3 (fr)
NO (1) NO302891B1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0845485A1 (fr) * 1996-12-02 1998-06-03 Bayer Ag Mousses de polyuréthane souples et élastiques et leur procédé de préparation
US6774153B2 (en) 2000-01-17 2004-08-10 Huntsman International Llc Process for preparing a free rise or slabstock flexible polyurethane foam
US6919384B2 (en) 2001-02-26 2005-07-19 Huntsman International Llc Process for preparing a flexible polyurethane foam
ITMI20092227A1 (it) * 2009-12-18 2011-06-19 Dow Global Technologies Inc Schiume poliuretaniche ritardanti di fiamma contenenti legami biureto

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19924802B4 (de) * 1999-05-29 2008-02-28 Basf Ag Verfahren zur Herstellung von schalldämpfenden und energieabsorbierenden Polyurethanschäumen
MXPA02007859A (es) 2000-02-14 2002-11-29 Huntsman Int Llc Proceso para preparar una espuma flexible de poliuretano.
JP5839394B2 (ja) * 2011-11-02 2016-01-06 株式会社イノアックコーポレーション 寝具用クッション

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2211914A1 (de) * 1971-03-15 1972-10-12 Pechiney Ugine Kuhlmann Herstellung von Polyurethan-Schaumstoffen mit sehr geringer Stauchhärte und hohem Aufsaugvermögen
GB1480972A (en) * 1974-04-19 1977-07-27 Naphtachimie Sa Process for manufacturing polyurethane foams having elasticity
EP0116309A1 (fr) * 1983-01-17 1984-08-22 Basf Wyandotte Corporation Mousses de polyuréthane flexibles ayant une déformation sous charge à pression de bille préparées à partir de mélanges de polyols
EP0433889A2 (fr) * 1989-12-21 1991-06-26 BASF Aktiengesellschaft Procédé de préparation de mousses souples de polyuréthane à faible résistance à la compression et mélanges de polyols séquencés de polyoxypropylène-polyoxyéthylène adaptés à ce procédé

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2211914A1 (de) * 1971-03-15 1972-10-12 Pechiney Ugine Kuhlmann Herstellung von Polyurethan-Schaumstoffen mit sehr geringer Stauchhärte und hohem Aufsaugvermögen
GB1480972A (en) * 1974-04-19 1977-07-27 Naphtachimie Sa Process for manufacturing polyurethane foams having elasticity
EP0116309A1 (fr) * 1983-01-17 1984-08-22 Basf Wyandotte Corporation Mousses de polyuréthane flexibles ayant une déformation sous charge à pression de bille préparées à partir de mélanges de polyols
EP0433889A2 (fr) * 1989-12-21 1991-06-26 BASF Aktiengesellschaft Procédé de préparation de mousses souples de polyuréthane à faible résistance à la compression et mélanges de polyols séquencés de polyoxypropylène-polyoxyéthylène adaptés à ce procédé

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0845485A1 (fr) * 1996-12-02 1998-06-03 Bayer Ag Mousses de polyuréthane souples et élastiques et leur procédé de préparation
US6774153B2 (en) 2000-01-17 2004-08-10 Huntsman International Llc Process for preparing a free rise or slabstock flexible polyurethane foam
US6919384B2 (en) 2001-02-26 2005-07-19 Huntsman International Llc Process for preparing a flexible polyurethane foam
ITMI20092227A1 (it) * 2009-12-18 2011-06-19 Dow Global Technologies Inc Schiume poliuretaniche ritardanti di fiamma contenenti legami biureto
WO2011073355A1 (fr) * 2009-12-18 2011-06-23 Dow Global Technologies Inc. Mousses de polyuréthane ignifuges contenant des liaisons biurets

Also Published As

Publication number Publication date
NO930181L (no) 1993-08-04
CA2088414C (fr) 2004-07-06
DK0554721T3 (da) 1998-07-20
ES2108142T3 (es) 1997-12-16
NO302891B1 (no) 1998-05-04
DE59307585D1 (de) 1997-12-04
EP0554721B1 (fr) 1997-10-29
ATE159740T1 (de) 1997-11-15
JPH05271379A (ja) 1993-10-19
DE4202992A1 (de) 1993-08-05
CA2088414A1 (fr) 1993-08-04
NO930181D0 (no) 1993-01-19

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